anticlockwise vs in an anticlockwise direction

anticlockwise

adv
  • In an anticlockwise fashion. 

adj
  • in a circular fashion so as to be moving to the left at the top of the circle and to the right at the bottom (when viewed from the front), in the opposite direction to the way the hands of an analogue clock move. 

in an anticlockwise direction

How often have the words anticlockwise and in an anticlockwise direction occurred in a corpus of books? (source: Google Ngram Viewer )